A342863 - cp's OEIS frontend

A342863 Irregular table read by rows: T(n,k) is the number of permutations in S_n that have exactly k occurrences of the pattern 1243. 0 <= k <= A028723(n + 1).

n	a(n)
0	1
1	1
2	2
3	6
4	23
5	1
6	103
7	11
8	4
9	2
10	513
11	88
12	56
13	32
14	14
15	7
16	9
17	0
18	0
19	1
20	2761
21	638
22	543
23	341
24	235
25	138
26	173
27	51
28	42
29	47
30	34
31	6
32	17
33	4
34	0
35	7
36	1
37	0
38	2
39	15767
40	4478
41	4600
42	3119
43	2658
44	1710
45	2180
46	972
47	975
48	877
49	771
50	356
51	542
52	233
53	184
54	266
55	157
56	81
57	130
58	41
59	60
60	49
61	16
62	16
63	37
64	8
65	9
66	13
67	3
68	0
69	10
70	1
71	0
72	0
73	0
74	0
75	1

[1, 1, 2, 6, 23, 1, 103, 11, 4, 2, 513, 88, 56, 32, 14, 7, 9, 0, 0, 1, 2761, 638, 543, 341, 235, 138, 173, 51, 42, 47, 34, 6, 17, 4, 0, 7, 1, 0, 2, 15767, 4478, 4600, 3119, 2658, 1710, 2180, 972, 975, 877, 771, 356, 542, 233, 184, 266, 157, 81, 130, 41, 60, 49, 16, 16, 37, 8, 9, 13, 3, 0, 10, 1, 0, 0, 0, 0, 1]

cp's OEIS Frontend

A342863 Irregular table read by rows: T(n,k) is the number of permutations in S_n that have exactly k occurrences of the pattern 1243. 0 <= k <= A028723(n + 1).

Table of values

List of values